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General Electric SL440JK4G - Breaker Bus Plug 400A 600V 3-Phase

General Electric
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⚡ Product Branding Information

Some General Electric products may now ship with ABB branding due to ABB’s acquisition of GE Industrial Solutions.

Depending on the manufacturing date or production batch, the item or packaging may display either GE or ABB branding.

Unless otherwise noted, these products are considered equivalent in form, fit, function, and specifications.

Please contact our team before placing your order if brand labeling or packaging is critical for your application.

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General Electric SL440JK4G is a breaker-type bus plug from the Spectra Low-Amp family designed for circuit protection and power distribution in industrial busway systems. It is rated for 600V, 400A, and 3-phase operation with an AIC rating of 30kA at 480V. The unit weighs 58 lb, features a 4-wire configuration, and is built for plug-in mounting within Spectra Series busway. It complies with industry standards for safety and durability in demanding environments. Typical applications include power distribution in manufacturing facilities, commercial buildings, and other heavy-duty electrical installations.

Key Features & Specifications
  • Manufacturer: General Electric
  • Item Subcategory: Breaker Type
  • Family: Spectra Low-Amp
  • Type: SL
  • Weight: 58 lb
  • Wire: 4
  • Voltage Rating: 600V
  • AIC rating: 30kA@480V
  • Phase: 3
  • Current Rating: 400A
  • Part Number: SL440JK4G
  • Series: Spectra Series
  • Poles: 4
  • Mounting Type: Busway Plug-In
  • Interrupt Rating: 200,000A with Class J fuses
  • Frame: Spectra Series
  • Trip Unit: Breaker-Type
  • Wire Configuration: 4-Wire with Ground